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Bug
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Resolution: Done
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Critical
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JWS 3.1.0 SP2 DR2
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None
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Documentation (Ref Guide, User Guide, etc.), User Experience
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Add system property expansion support for properties files.
JWS-847 added a new system property org.apache.tomcat.util.digester.REPLACE_SYSTEM_PROPERTIES to allow system property value replacement from the digester property source. However, Digester.replaceProperties() invokes only one property source which is specified with org.apache.tomcat.util.digester.PROPERTY_SOURCE.
Hence, even if org.apache.tomcat.util.digester.REPLACE_SYSTEM_PROPERTIES is set to true, the Digester.replaceProperties() does not invoke Digester$SystemPropertySource, so system property expansion does not happen for properties files.
Also note that JWS-863 added a support for multiple properties files. We need to support hierarchical reference of variables within these multiple properties files.
LoadExternalPropertiesListener invokes Digester.replaceProperties() after loading properties files when org.apache.tomcat.util.digester.REPLACE_SYSTEM_PROPERTIES is set to true. So, both requirements can be achieved if we fix Digester.replaceProperties() to invoke Digester$SystemPropertySource.
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Steps to reproduce the issue.
1. Configure the following in server.xml:
<Listener className="org.apache.catalina.core.LoadExternalPropertiesListener file.0="${catalina.base}/conf/test0.properties" file.1="${catalina.base}/conf/test1.properties" overwrite="true" loadFirst="true"/> ... <Connector port="${tomcat.http.port}" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" /> <Connector port="${tomcat.ajp.port}" protocol="AJP/1.3" redirectPort="8443" />
2. Add the following to conf/catalina.properties:
org.apache.tomcat.util.digester.REPLACE_SYSTEM_PROPERTIES=true
my.http.port=8080
3. Add the following to conf/test0.properties:
my.ajp.port=8009
4. Add the following to conf/test1.properties:
tomcat.http.port=${my.http.port}
tomcat.ajp.port=${my.ajp.port}
5. Start tomcat then you will see the following exception at start-up:
SEVERE [main] org.apache.catalina.core.StandardService.startInternal Failed to start connector [Connector[HTTP/1.1-auto-1]] org.apache.catalina.LifecycleException: Failed to start component [Connector[HTTP/1.1-auto-1]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:459) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:789) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) at org.apache.catalina.startup.Catalina.start(Catalina.java:629) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:349) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:483) Caused by: org.apache.catalina.LifecycleException: The connector cannot start since the specified port value of [-1] is invalid at org.apache.catalina.connector.Connector.startInternal(Connector.java:979) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) ... 11 more SEVERE [main] org.apache.catalina.core.StandardService.startInternal Failed to start connector [Connector[AJP/1.3-auto-2]] org.apache.catalina.LifecycleException: Failed to start component [Connector[AJP/1.3-auto-2]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:459) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:789) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) at org.apache.catalina.startup.Catalina.start(Catalina.java:629) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:349) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:483) Caused by: org.apache.catalina.LifecycleException: The connector cannot start since the specified port value of [-1] is invalid at org.apache.catalina.connector.Connector.startInternal(Connector.java:979) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) ... 11 more
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- Closed
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